Clouds ring Australia's western coast in this true-color <a href="http://modis.gsfc.nasa.gov" target="outlink">Moderate Resolution Imaging Spectroradiometer</a> (MODIS) image. In the lower right corner, intermittent salt lakes form light grey patches against the dark red sand of the Australian desert. These lakes occasionally fill during the wet season. To the left, the Peron Peninsula separates Denham Sound (left) and Shark Bay (right). The point of land to the north is the North West Cape, which shelters the Exmouth Gulf, also called Coral Bay. A vast coral reef in the bay and extending eastward along the coast tints the waters green in this image, captured by the Terra satellite on September 15, 2003. Sensor: Terra/MODIS. Data Start Date: 9/15/03. Data End Date: 9/15/03.